A Study of 68Ga-Fibroblast Activation Protein Inhibitor (FAPI) Positron Emission Tomography in Heart Failure
A Three-Arm, Observational, Pilot Study of 68Ga-Fibroblast Activation Protein Inhibitor (FAPI) Positron Emission Tomography in Heart Failure
1 other identifier
interventional
35
1 country
1
Brief Summary
The purpose of this study is to assess the performance of 68Ga- FAPI PET in heart failure with preserved ejection fraction (HFpEF)
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_2
Started Nov 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
July 16, 2025
CompletedFirst Posted
Study publicly available on registry
July 24, 2025
CompletedStudy Start
First participant enrolled
November 1, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 1, 2027
April 27, 2026
April 1, 2026
1.7 years
July 16, 2025
April 22, 2026
Conditions
Outcome Measures
Primary Outcomes (4)
Myocardial 68Ga-FAPI (68Ga-Fibroblast Activation Protein Inhibitor) volume
Myocardial 68Ga-FAPI volume will be determined by a PET (positron emission tomography) scan and measured in cm3
Baseline and 6 Months
Mean Standardized Uptake Value (SUVmean) and Max Standardized Uptake Value (SUVmax)
SUVmean and SUVmax will be determined by a PET (positron emission tomography) scan and measured as a dimensionless ratio
Baseline and 6 Months
Area of 68Ga-FAPI (68Ga-Fibroblast Activation Protein Inhibitor) uptake
Area of 68Ga-FAPI will be determined by a PET (positron emission tomography) scan and measured as a % of polar map.
Baseline and 6 Months
68Ga-FAPI target-to-background ratio
68Ga-FAPI target-to-background ratio will be determined by a PET (positron emission tomography) scan and measured as a dimensionless ratio.
Baseline and 6 Months
Study Arms (3)
Obese subjects with HFpEF (heart failure with preserved ejection fraction)
EXPERIMENTALActive cardiac sarcoidosis
ACTIVE COMPARATORHealthy subjects
ACTIVE COMPARATORInterventions
68Ga-FAPI is a gallium-68 fibroblast activation protein inhibitor that will be injected into subjects during a PET (positron emission tomography) scan
Eligibility Criteria
You may qualify if:
- Patients aged ≥ 30 years old with exertional dyspnea (NYHA II and III) and LVEF ≥50%
- BMI ≥ 30
- New diagnosis of HFpEF based on RHC at baseline (elevated PCWP at rest and/or during exercise)
You may not qualify if:
- Primary cardiomyopathy or pericardial disease or ≥ moderate valvular disease
- Dyspnea due to lung disease or CAD
- Severe anemia, liver, or renal disease
- Active cancer
- Systemic active inflammatory or autoimmune disease (e.g. rheumatoid arthritis, SLE, etc.)
- Recent hospitalization (\< 30 days) or coronary revascularization (\< 90 days)
- Patients already taking SGLT2i and/or GLP-1A
- Pregnant or breastfeeding
- Inability to tolerate supine position for the PET/CT or CMR scans.
- Contraindications for safe CMR scanning (e.g., uncontrolled claustrophobia, cochlear implant, implanted neural stimulator)
- Known gadolinium allergy
- Presence of implantable cardiac pacemaker or defibrillator or mechanical valve.
- Ambulatory patients aged ≥ 18 years old
- New referrals to the Sarcoid Clinic with a confirmed but untreated diagnosis of definite or probable CS based on 2014 HRS consensus (see Table 2)
- With a positive cardiac 18F-FDG PET scan within 30 days.
- +17 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Mayo Cliniclead
Study Sites (1)
Mayo Clinic in Rochester
Rochester, Minnesota, 55905, United States
MeSH Terms
Interventions
Study Officials
- PRINCIPAL INVESTIGATOR
Omar Abou Ezzeddine, M.D, M.S
Mayo Clinic
- PRINCIPAL INVESTIGATOR
Gregorio Tersalvi, M.D
Mayo Clinic
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 2
- Allocation
- NON RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- DIAGNOSTIC
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Principal Investigator
Study Record Dates
First Submitted
July 16, 2025
First Posted
July 24, 2025
Study Start
November 1, 2025
Primary Completion (Estimated)
July 1, 2027
Study Completion (Estimated)
July 1, 2027
Last Updated
April 27, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share